| 5 |
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* Compute rays corresponding to a given picture or view. |
| 6 |
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*/ |
| 7 |
|
|
| 8 |
< |
|
| 8 |
> |
#include "platform.h" |
| 9 |
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#include "standard.h" |
| 10 |
– |
|
| 10 |
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#include "view.h" |
| 11 |
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|
| 12 |
< |
extern int putf(), putd(), puta(); |
| 12 |
> |
typedef void putfunc(FVECT ro, FVECT rd); |
| 13 |
> |
static putfunc puta; |
| 14 |
> |
static putfunc putf; |
| 15 |
> |
static putfunc putd; |
| 16 |
> |
static void pix2rays(FILE *fp); |
| 17 |
> |
static void putrays(void); |
| 18 |
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|
| 19 |
< |
int (*putr)() = puta; |
| 19 |
> |
static putfunc *putr = puta; |
| 20 |
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|
| 21 |
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VIEW vw = STDVIEW; |
| 22 |
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|
| 31 |
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char *progname; |
| 32 |
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|
| 33 |
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|
| 34 |
< |
main(argc, argv) |
| 35 |
< |
int argc; |
| 36 |
< |
char *argv[]; |
| 34 |
> |
int |
| 35 |
> |
main( |
| 36 |
> |
int argc, |
| 37 |
> |
char *argv[] |
| 38 |
> |
) |
| 39 |
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{ |
| 40 |
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char *err; |
| 41 |
|
int rval, getdim = 0; |
| 105 |
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default: |
| 106 |
|
goto userr; |
| 107 |
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} |
| 108 |
< |
if (i > argc | i+2 < argc) |
| 108 |
> |
if ((i > argc) | (i+2 < argc)) |
| 109 |
|
goto userr; |
| 110 |
|
if (i < argc) { |
| 111 |
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rval = viewfile(argv[i], &vw, &rs); |
| 147 |
|
} |
| 148 |
|
|
| 149 |
|
|
| 150 |
< |
pix2rays(FILE *fp) |
| 150 |
> |
static void |
| 151 |
> |
pix2rays( |
| 152 |
> |
FILE *fp |
| 153 |
> |
) |
| 154 |
|
{ |
| 155 |
|
static FVECT rorg, rdir; |
| 156 |
|
float zval; |
| 160 |
|
register int i; |
| 161 |
|
|
| 162 |
|
while (fscanf(fp, "%lf %lf", &px, &py) == 2) { |
| 163 |
+ |
px += .5; py += .5; |
| 164 |
|
if (px < 0 || px >= rs.xr || |
| 165 |
|
py < 0 || py >= rs.yr) { |
| 166 |
|
fprintf(stderr, |
| 171 |
|
if (zfd >= 0) { |
| 172 |
|
loc2pix(pp, &rs, px/rs.xr, py/rs.yr); |
| 173 |
|
if (lseek(zfd, |
| 174 |
< |
(pp[1]*scanlen(&rs)+pp[0])*sizeof(float), 0) |
| 175 |
< |
< 0 || |
| 174 |
> |
(pp[1]*scanlen(&rs)+pp[0])*sizeof(float), |
| 175 |
> |
SEEK_SET) < 0 || |
| 176 |
|
read(zfd, &zval, sizeof(float)) |
| 177 |
< |
< sizeof(float)) { |
| 177 |
> |
< sizeof(float)) { |
| 178 |
|
fprintf(stderr, "%s: depth buffer read error\n", |
| 179 |
|
progname); |
| 180 |
|
exit(1); |
| 201 |
|
} |
| 202 |
|
|
| 203 |
|
|
| 204 |
< |
putrays() |
| 204 |
> |
static void |
| 205 |
> |
putrays(void) |
| 206 |
|
{ |
| 207 |
|
static RREAL loc[2]; |
| 208 |
|
static FVECT rorg, rdir; |
| 209 |
< |
float *zbuf; |
| 209 |
> |
float *zbuf = NULL; |
| 210 |
|
int sc; |
| 211 |
|
double d; |
| 212 |
|
register int si, i; |
| 249 |
|
} |
| 250 |
|
|
| 251 |
|
|
| 252 |
< |
puta(ro, rd) /* put out ray in ASCII format */ |
| 253 |
< |
FVECT ro, rd; |
| 252 |
> |
static void |
| 253 |
> |
puta( /* put out ray in ASCII format */ |
| 254 |
> |
FVECT ro, |
| 255 |
> |
FVECT rd |
| 256 |
> |
) |
| 257 |
|
{ |
| 258 |
|
printf("%.5e %.5e %.5e %.5e %.5e %.5e\n", |
| 259 |
|
ro[0], ro[1], ro[2], |
| 261 |
|
} |
| 262 |
|
|
| 263 |
|
|
| 264 |
< |
putf(ro, rd) /* put out ray in float format */ |
| 265 |
< |
FVECT ro, rd; |
| 264 |
> |
static void |
| 265 |
> |
putf( /* put out ray in float format */ |
| 266 |
> |
FVECT ro, |
| 267 |
> |
FVECT rd |
| 268 |
> |
) |
| 269 |
|
{ |
| 270 |
|
float v[6]; |
| 271 |
|
|
| 275 |
|
} |
| 276 |
|
|
| 277 |
|
|
| 278 |
< |
putd(ro, rd) /* put out ray in double format */ |
| 279 |
< |
FVECT ro, rd; |
| 278 |
> |
static void |
| 279 |
> |
putd( /* put out ray in double format */ |
| 280 |
> |
FVECT ro, |
| 281 |
> |
FVECT rd |
| 282 |
> |
) |
| 283 |
|
{ |
| 284 |
|
double v[6]; |
| 285 |
|
|